Sash lock



FIG. 1 is a perspective view of a sash lock of the claimed design.

FIG. 2 is a front view.

FIG. 3 is a rear view.

FIG. 4 is a left side view.

FIG. 5 is a right side view.

FIG. 6 is a top view; and,

FIG. 7 is a bottom view.

The broken line showing of a portion of a sash in FIG. 1 is for illustrative purpose only and forms no part of the claimed design. 

We claim the ornamental design for a sash lock, as shown and described. 